The Atacama Desert lies along the southwestern edge of South America in Chile. The desert primarily lies between two mountain chains, the Chilean Coast Range and the Andes Mountains. This desert is about forty-one thousand miles in area. The Rocky Mountains are located along the Midwestern area of the United States. In this large mountain chain are smaller chains including Cascade Range and the Sierra Nevada.
The mountain chain begins in the upper part of Canada and travels for over 3,000 miles down into the U.S. all the way to New Mexico. The Sierra Madres primarily line either coast of Mexico. There are different ranges including the Sierra Madre Occidental, Sierra Madre de Oaxaca, Sierra Madre del Sur, and the Sierra Madre Oriental.